Pinpoint Test G: The Front Display Interface Module (FDIM) Is Completely Inoperative (Vehicles Without Navigation)

Information and Entertainment System

Pinpoint Test G: The Front Display Interface Module (FDIM) Is Completely Inoperative (Vehicles Without Navigation)

Normal Operation

The Front Display Interface Module (FDIM) receives power and ground at all times. The ignition switch position message is sent to the FDIM by the Smart Junction Box (SJB) via the Medium Speed Controller Area Network (MS-CAN).

Button press information is also sent from the FDIM to the Audio Control Module (ACM) via the MS-CAN. If the FDIM screen operates correctly but the FDIM buttons are inoperative, GO to Pinpoint Test I. Pinpoint Test I: An Individual Front Display Interface Module (FDIM) Display Is Inoperative - Vehicles Without Navigation

This pinpoint test is intended to diagnose the following:

- Communication network concern
- FDIM



PINPOINT TEST G: THE FDIM IS COMPLETELY INOPERATIVE (VEHICLES WITHOUT NAVIGATION)

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G1 CHECK FOR SCAN TOOL COMMUNICATION WITH THE FDIM


- Carry out the network test using the scan tool.
- Does the scan tool communicate with the FDIM?

Yes
GO to G2.

No
REFER to Information Bus.

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G2 CHECK FOR CORRECT FDIM OPERATION


- Ignition OFF.
- Disconnect the FDIM connector.
- Check for:
- corrosion
- damaged pins
- pushed-out pins
- Connect the FDIM connector and make sure it seats correctly.
- Operate the system and determine if the concern is still present.
- Is the concern still present?

Yes
INSTALL a new FDIM. REFER to Front Display Interface Module (FDIM) - Without Navigation Front Display Interface Module (FDIM) - Without Navigation.
TEST the system for normal operation.

No
The system is operating correctly at this time. The concern may have been caused by a loose or corroded connector.

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